Function Not Implemented Error When Creating VF

Problem

Creating a virtio-net VF returns an error from the command line:

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            # echo 3 > /sys/bus/pci/drivers/virtio-pci/0000:41:00.2/sriov_numvfs
write error: Function not implemented

The host-side dmesg shows the following:

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            [  301.204661] virtio-pci 0000:41:00.2: Driver doesn't support SRIOV configuration via sysfs

Virtio SR-IOV is only supported starting from the following kernel version: